Utility giant Pacific Gas & Electric started shutting off the power early this morning in parts of Northern California in an effort to prevent starting a wildfire. Almost 500,000 customers are in the dark right now. Another 300,000 will lose power later in the day. The electricity could be off for days. Forecasters warn that many parts of Northern California are under extreme fire weather danger, with windy and dry conditions forecast for the region. PG&E equipment started the deadly 2018 Camp Fire, a state investigation found, after a power line touched nearby trees. So, the extreme measure of shutting off the power is being used to try to prevent future blazes.